/**
 * Copyright  2017 ZTE Corporation.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.openo.commontosca.inventory.sdk.api.deferred;

public class AlwaysResult<Result, Fail> {

  State state;
  Object obj;

  public AlwaysResult(State state, Result resolved, Fail rejected) {
    this.state = state;
    switch (this.state) {
      case REJECTED: {
        this.obj = rejected;
        break;
      }
      case RESOLVED: {
        this.obj = resolved;
        break;
      }
      case PENDING: {
        break;
      }
    }
  }

  @SuppressWarnings("unchecked")
  public Fail getRejected() {
    return this.state == State.REJECTED ? (Fail) this.obj : null;
  }

  @SuppressWarnings("unchecked")
  public Result getResolved() {
    return this.state == State.RESOLVED ? (Result) this.obj : null;
  }

  public State getState() {
    return this.state;
  }

}
